US5135121A - Pressure cooker - Google Patents
Pressure cooker Download PDFInfo
- Publication number
- US5135121A US5135121A US07/597,578 US59757890A US5135121A US 5135121 A US5135121 A US 5135121A US 59757890 A US59757890 A US 59757890A US 5135121 A US5135121 A US 5135121A
- Authority
- US
- United States
- Prior art keywords
- cooker
- lid
- handle
- pressure
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/09—Safety devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0804—Locking devices
- A47J27/0806—Locking devices of the bayonet-type
Definitions
- the instant invention relates to a pressure cooker, specifically of the type provided with a bayonet lock and fitted with a pair of associated handles, one provided on the lid and the other one provided on the cooker body, which may be locked to each other upon closure and unlocked to open the respective lid.
- the cooker is provided with a valve regulating and controlling internal pressure, acted upon to allow the gas to leave in the event of excessive pressure, being moreover provided with means, specifically a handle mounted on the lid handle, to establish several working positions under a different pressure for the valve.
- the second case i.e., utility model 278,402, specifically claimed the means to lock both cooker handles, when closing the same.
- the pressure cooker subject hereof relies upon a regulating and controlling device and locking means to close the relevant lid in bayonet type pressure cookers, but is also provided with a series of modifications or improvements that result in the same number of functional, structural and, not least, economical advantages, doubtlessly affording services that no other cookers of this type render, not even those described as background to the invention.
- the improvements of the pressure cooker of the invention are first of all reside in the way to operate the clevis, and the respective manually operated handle through which the clevis is specifically operated.
- Another improvement lies in the locking means to close the lid, in other words, the connection between such lid handle and the cooker body handle, in order to lock the lid and cooker body together.
- Another improvement lies in the fact that the cooker is also provided, on its lid, with a safety valve to assist the valve.
- valve based on a piston with some seats, is complemented by a rod housed within the cylindrical body forming the valve piston, and partially projecting above the same, the free or upper end of such rod being provided with rings of different colors indicating a greater or lesser degree of pressure within the cooker, for which purpose such rod may be displaced upwards precisely by a greater or lesser internal cooker pressure.
- FIG. 1 is a sectional elevation view of a general mechanism for regulating and controlling the pressure cooker, which mechanism is provided with the relevant valve, the additional safety valve and the mechanical operating means, all provided in the assembly formed by the lid handle and associated cooker body handles;
- FIG. 2 is a plan view of the bottom surface of the lid handle with the elements provided therein, namely valve, operating clevis and handle operating such clevis and including the locking means for closing the cooker;
- FIG. 3 is a top perspective view of a portion of the cooker body handle, showing inclines and stepping involved in the respective locking for closing the cooker, which locking will logically be effected with the assistance of the lid handle to fix the latter upon closure;
- FIG. 4 is an exploded side elevation view of the constituent parts of the handle for operating the relevant clevis that in turn act upon a bushing assisting in the adjustment of the cooker valve;
- FIG. 5 shows a plan view with a cut-away portion of the safety valve provided in the cooker's lid, which valve is not associated to the aforesaid regulating and control valve.
- the pressure cooker being of the type fitted with a bayonet type lock, and for which only the parts corresponding to the two associated handles fixed to the cooker body and the lid as such have been illustrated, the cooker comprises a first handle (1), duly screwed by means of internal screws (2) to the cooker body (3), whereas number (4) indicates the associated handle likewise screwed by means of hidden screws to the lid (5).
- the lid's top handle (4) is provided with a manually and externally operated handle or lever (6) which can move in its emplacement with regard to the handle (4) to attain different degrees of cooker pressure; lever or handle (6) is, on the one hand, provided with a groove (7) (see FIG. 4) housing a transverse shaft (8) which branches into a fork or clevis (9) whose ends each provide a stepping (10) whose function shall be explained hereinafter.
- an inward projection (11) Facing the groove (7) of lever (6) there is provided an inward projection (11), whose function is to act upon the respective perimetric joint (12) provided between the lid (5) and the cooker body (3), so that the projection's (11) thrust causes the joint (12) to be deformed and will in short cause a small aperture to be opened to allow outlet of gases at the start, i.e., before proceeding to open the cooker, as shown in FIG. 1.
- the lid handle (4) is fitted with the respective regulating and control valve (16) which comprises a hollow cylindrical body (17) housed within a hole in handle (4), and whose tubular body (17) is screwed by means of one screw and its side is provided with two axial windows through which the same number of radial fins (18) pass, such fins forming part of an internal bushing (19) that can move up and down with regard to the body (17) that makes up the general valve support, the valve further comprising a piston (20) with perimetric steppings associated with others provided on the support body (17), so that by means of a joint (21) precisely provided on one of the steppings thereof, the valve is closed when there is no pressure inside the cooker, whereas when pressure is present, it pushes such piston (20) against a spring (22) and the joint (21), moving up, will permit internal communication with an outlet (23) precisely provided on the front of handle (4), i.e., between the latter and the actual external surface of the lid (5), as also clearly shown in FIG. 1.
- the piston (20) that makes up the valve houses a rod (24) whose upper end is provided with rings (25) of different color, that can be visible to the outside when the pressure inside the cooker pushes such rod (24) against the action a spring (26).
- the rings will indicate different degrees of pressure inside the cooker, according to their color, when they become visible above the actual handle (4).
- the valve is assisted by a safety valve (27) provided on the actual lid (5), which valve has an internal nut (28) and a rod (29) that can move against the action of a spring, by means of the internal cooker pressure.
- Valve adjustment is determined by the position of handle (6) so that displacement of handle (6) in either direction implies that the corresponding clevis (9), when moving axially, will drag up or down with it the radial fins or strips (18) of the internal bushing (19) in such a way that the latter represents a more or less internal seat for the spring (22) and in short to attain a higher or lower valve pressure adjustment, so that the steppings (10) provided on the ends of clevis (9) actually cause a greater or lesser displacement of the bushing (19) in either direction.
- the lower handle (1) of the cooker body and specifically its top surface facing the bottom surface of handle (4), is provided with a side ramp (30), a likewise side recess (31), its innermost part leading into an axial and deeper slot (32), so that when both handles (1) and (4) face each other as shown in FIG. 1, the retractable protuberance (14) provided on the lever (6) slides on ramp (30) and projection (13) of lever (6) is located and slides through the slot (31), all of this when the lid is placed on the cooker and is to be closed by duly turning the same.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8903049 | 1989-10-16 | ||
ES19898903049U ES1011685Y (es) | 1989-10-16 | 1989-10-16 | Olla a presion perfeccionada. |
Publications (1)
Publication Number | Publication Date |
---|---|
US5135121A true US5135121A (en) | 1992-08-04 |
Family
ID=8263800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/597,578 Expired - Fee Related US5135121A (en) | 1989-10-16 | 1990-10-15 | Pressure cooker |
Country Status (4)
Country | Link |
---|---|
US (1) | US5135121A (de) |
EP (1) | EP0424305B1 (de) |
DE (1) | DE69006449T2 (de) |
ES (1) | ES1011685Y (de) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5269336A (en) * | 1992-11-02 | 1993-12-14 | Hawkins Cookers Limited | Air ventile for pressure cookers and pressure cookers having the same |
US5839357A (en) * | 1996-03-15 | 1998-11-24 | Samsung Electronics Co., Ltd. | Electric pressure cooker |
US6105808A (en) * | 1997-11-07 | 2000-08-22 | Cruzinox Industria Metalurgica, Lda | Opening and closing safety device for a pressure cooker |
US6158606A (en) * | 1998-12-07 | 2000-12-12 | S. Coop Fagor | Pressure setting value for a pressure-cooker |
US6705209B2 (en) * | 2000-04-07 | 2004-03-16 | Wen Wei Jian | Pressure cooker |
US20070095836A1 (en) * | 2005-10-28 | 2007-05-03 | Wolfgang Auwarter | Pressure cooker |
US20080061061A1 (en) * | 2006-09-07 | 2008-03-13 | Michilin Prosperity Co., Ltd. | Snap down lock of and release valve control mechanism for a vacuum food container |
EP2258243A1 (de) | 2009-06-02 | 2010-12-08 | Kuhn Rikon AG | Schnellkochtopf |
US20120091146A1 (en) * | 2008-12-23 | 2012-04-19 | Fissler Gmbh | Steam pressure vessel with safety device |
US20120199591A1 (en) * | 2011-02-07 | 2012-08-09 | Stellwag Juergen | Pot cover with locking means |
US20130199635A1 (en) * | 2012-02-08 | 2013-08-08 | Tom Hiroshi Hasegawa | Pressure Release Valve |
US20130255509A1 (en) * | 2010-12-24 | 2013-10-03 | Zhibin Huang | Electric pressure cooker with removable flip cover |
JP2018108354A (ja) * | 2016-12-02 | 2018-07-12 | セブ ソシエテ アノニム | バイオネット圧力調理器および移動錠 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2066649B1 (es) * | 1992-05-27 | 1998-08-16 | Fagor S Coop | Mejoras en ollas a presion con cierre de bayoneta y valvula de pesa. |
IT1275723B1 (it) * | 1995-04-06 | 1997-10-17 | Lagostina Spa | Dispositivo di comando della valvola di lavoro di una pentola a pressione |
DE202008017874U1 (de) * | 2008-10-30 | 2010-09-23 | Fissler Gmbh | Druckgefäß |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2483297A (en) * | 1946-03-16 | 1949-09-27 | Mcglynn Hays Ind Inc | Pressure cooker |
US3973694A (en) * | 1975-04-16 | 1976-08-10 | Oberschwabische Metallwarenfabrik Gmbh & Co. Kg | Pressure-cooker |
US4251007A (en) * | 1979-01-17 | 1981-02-17 | Braun & Kemmler Gmbh & Co. Kg | Pressure cooker having safety means |
US4330069A (en) * | 1980-01-22 | 1982-05-18 | Wurttembergische Metallwarenfabrik | Steam pressure cooker |
US4534485A (en) * | 1984-09-24 | 1985-08-13 | Subramanian Naranammalpuram S | Pressure cookers having vent means |
US4620643A (en) * | 1984-02-29 | 1986-11-04 | Seb S.A. | Safety device for opening and closing a pressure-cooking appliance without danger |
US4735190A (en) * | 1984-01-07 | 1988-04-05 | Heinrich Baumgarten Kg Spezialfabrik Fuer Beschlagteile | Steam-pressure cooking utensil |
US4796777A (en) * | 1987-12-28 | 1989-01-10 | Keller Russell D | Vented fuel tank cap and valve assembly |
US4899782A (en) * | 1987-03-09 | 1990-02-13 | Wmf Wurttembergische Metallwarenfabrik Ag | Steam pressure cooker |
US4932550A (en) * | 1989-08-23 | 1990-06-12 | National Presto Industries, Inc. | Pressure cooker interlock |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2614724A (en) * | 1948-05-13 | 1952-10-21 | Revere Copper & Brass Inc | Pressure cooker with selectively adjustable vent valve |
US2828045A (en) * | 1955-01-03 | 1958-03-25 | Vischer Products Company | Closure and method of making same |
-
1989
- 1989-10-16 ES ES19898903049U patent/ES1011685Y/es not_active Expired - Lifetime
-
1990
- 1990-10-15 US US07/597,578 patent/US5135121A/en not_active Expired - Fee Related
- 1990-10-15 EP EP90500097A patent/EP0424305B1/de not_active Expired - Lifetime
- 1990-10-15 DE DE69006449T patent/DE69006449T2/de not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2483297A (en) * | 1946-03-16 | 1949-09-27 | Mcglynn Hays Ind Inc | Pressure cooker |
US3973694A (en) * | 1975-04-16 | 1976-08-10 | Oberschwabische Metallwarenfabrik Gmbh & Co. Kg | Pressure-cooker |
US4251007A (en) * | 1979-01-17 | 1981-02-17 | Braun & Kemmler Gmbh & Co. Kg | Pressure cooker having safety means |
US4330069A (en) * | 1980-01-22 | 1982-05-18 | Wurttembergische Metallwarenfabrik | Steam pressure cooker |
US4735190A (en) * | 1984-01-07 | 1988-04-05 | Heinrich Baumgarten Kg Spezialfabrik Fuer Beschlagteile | Steam-pressure cooking utensil |
US4620643A (en) * | 1984-02-29 | 1986-11-04 | Seb S.A. | Safety device for opening and closing a pressure-cooking appliance without danger |
US4534485A (en) * | 1984-09-24 | 1985-08-13 | Subramanian Naranammalpuram S | Pressure cookers having vent means |
US4899782A (en) * | 1987-03-09 | 1990-02-13 | Wmf Wurttembergische Metallwarenfabrik Ag | Steam pressure cooker |
US4796777A (en) * | 1987-12-28 | 1989-01-10 | Keller Russell D | Vented fuel tank cap and valve assembly |
US4932550A (en) * | 1989-08-23 | 1990-06-12 | National Presto Industries, Inc. | Pressure cooker interlock |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5269336A (en) * | 1992-11-02 | 1993-12-14 | Hawkins Cookers Limited | Air ventile for pressure cookers and pressure cookers having the same |
US5839357A (en) * | 1996-03-15 | 1998-11-24 | Samsung Electronics Co., Ltd. | Electric pressure cooker |
US6105808A (en) * | 1997-11-07 | 2000-08-22 | Cruzinox Industria Metalurgica, Lda | Opening and closing safety device for a pressure cooker |
US6158606A (en) * | 1998-12-07 | 2000-12-12 | S. Coop Fagor | Pressure setting value for a pressure-cooker |
US6705209B2 (en) * | 2000-04-07 | 2004-03-16 | Wen Wei Jian | Pressure cooker |
US20070095836A1 (en) * | 2005-10-28 | 2007-05-03 | Wolfgang Auwarter | Pressure cooker |
US7762420B2 (en) * | 2005-10-28 | 2010-07-27 | Kuhn Rikon Ag | Pressure cooker |
US20080061061A1 (en) * | 2006-09-07 | 2008-03-13 | Michilin Prosperity Co., Ltd. | Snap down lock of and release valve control mechanism for a vacuum food container |
US8813989B2 (en) * | 2008-12-23 | 2014-08-26 | Fissler Gmbh | Steam pressure vessel with safety device |
US20120091146A1 (en) * | 2008-12-23 | 2012-04-19 | Fissler Gmbh | Steam pressure vessel with safety device |
EP2258243A1 (de) | 2009-06-02 | 2010-12-08 | Kuhn Rikon AG | Schnellkochtopf |
US20130255509A1 (en) * | 2010-12-24 | 2013-10-03 | Zhibin Huang | Electric pressure cooker with removable flip cover |
US8800803B2 (en) * | 2011-02-07 | 2014-08-12 | Jurgen Stellwag | Pot cover with locking means |
US20120199591A1 (en) * | 2011-02-07 | 2012-08-09 | Stellwag Juergen | Pot cover with locking means |
US20130199635A1 (en) * | 2012-02-08 | 2013-08-08 | Tom Hiroshi Hasegawa | Pressure Release Valve |
US8695631B2 (en) * | 2012-02-08 | 2014-04-15 | Tom Hiroshi Hasegawa | Pressure release valve |
JP2018108354A (ja) * | 2016-12-02 | 2018-07-12 | セブ ソシエテ アノニム | バイオネット圧力調理器および移動錠 |
Also Published As
Publication number | Publication date |
---|---|
DE69006449D1 (de) | 1994-03-17 |
DE69006449T2 (de) | 1994-06-09 |
ES1011685U (es) | 1990-05-01 |
EP0424305A1 (de) | 1991-04-24 |
ES1011685Y (es) | 1990-11-16 |
EP0424305B1 (de) | 1994-02-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FAGOR, S. COOP., SPAIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UMEREZ ALTUNA, JAVIER;REEL/FRAME:005482/0207 Effective date: 19901005 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
FP | Expired due to failure to pay maintenance fee |
Effective date: 19960807 |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |